Window sash



1927' c. F. LYNCH WINDOW SASH Filed Jan. 25, 1926 2 Sheets-Sheet 1 NVNTOR W ATTORNEY- Jan. 18, 1927.

C. F. LYNCH WINDOW SASH Filed Jan. 25. 19 26 2 Sheets-Sheet 2 INVENTOM14;

I BY 5am J. A ORNEY,

Patented Jan. 1s, 1927.

UNITED STATES PATENT'OFFICE.

CORNELIUS F. LYNCH, OF YORK, N. Y.

iivmnow sass.

Application filed January 25, 1926. Serial No. 83,456.

per sash and a lower sash which are respectively mounted in separategrooves or equivalent in the exposed lateral faces of the window casingand equipped with sash cord and weights or equivalent pursuant to theusual practice to effect the vertical upward and downward movement ofthe respective-upper and lower sashes within the window casing. Theupper sash carries theglass for the same in a frame identified herein asthe upper glass frame, which is pivotally mounted at its opposite sidesto swing about a horizontal axis. --The abutting faces of the respectiveupper, lower and lateral strips of the upper'glass frame and the uppersash are arranged relative to one another to attain automatic lockingofthe upper lass frame when the upper sash is in its osed glass frameofposition. Similarly, the glass of the lower rash is mounted in a frameidentified herein.

as the lower glass frame, which is pivotally supported in the lower sashto provide for rotative movement on a horizontal axis, and the abuttingupper, lower and lateral strips of the glass frame and of the lower sashare related to one another to provide for the automatic locking of theparts when in their closed position. I

Further features and objects of the invention will be more fullyunderstood from the following detail description and the accompanyingdrawings, in which Fig. .1 is a perspective view showing a form ofmyinvention and illustrating the the lower sash in an open position;

Fig. 2 is a central sectional elevation of Fig. '1, taken on a greatlyenlarged scale; showing the upper glass frame in its open position andthe lower glass frame in its closed position;

Fig. 3 is a sectional elevation on line 3-3 ofF1g.2;

Fig. 4 is an exploded perspective view of certain detail parts ofmyinventio'n;

Fig. 5 is ,an exploded view in perspective, showing a manner of assemblyof a glass frame in its sash and the interconnecting pivotal mountingmembers; and- Fig. 61s a perspective view showing the stage of finalassembly of the parts illustrated in Fig. 5.

I Referring to Fig. 1, the window casing may be of the regulation or anyapproved form. The upper sash 11 is shown in Fig. 1 in its raisedposition. The lower sash 12 is shown in Fig. 1 in its lowered positionand its glass frame 13 in an open position by swinging the same. Theview illustrated in Fig. 1 is tha from theinterior of the building, thesill 14 representing the inside sill of the window casing 10.

The manner ofassociating the upper sash 11 and the lower sash 12 toprovide for the vertical upward and downward movements of the same maybe as desired; I have illustrated in the drawings the common form ofsuch arrangement including the sash cord 15, see Fig. 2, one end 16 ofwhich, is secured to the outer face of the right-hand side 17, see alsoFig. 1., of the lower sash 12, then extends upwardly over the pulley 18,thence downwardly within the hollow inte-.

rior of the window casing 10 to be connectedto the sash weight 19. Theguide strip 20 is located between the respective edges of the inner andouter faces of the outer strip 21 and inner strip 22 of the respectivelateral sides of the window casing 10 to provide for the two usualgrooves for guiding the uppler sash 11 and the lower sash 12 respectivey. i

In Fig. 2, the upper glass frame 23 is shown in its rotated and openposition. The glass of the upper frame 23 is indicated at 24 and isinserted in its frame 23 in the regulation or other approved manner. Thepivotal mounting of the frame 23 in its upper sash 11 may be etfectedlinany desired man- H ner. In the forms of my invention 'illustrated in thedrawings, I have employed the simplest form of such pivotal mountincomprising the pivot plate 25 provided wit the. pivot pin 26 and the comlementary socket plate 27' is provided wit a socket opening 28 forreceiving the pivot ,pin 26.

- The pivot plate 25 is secured by screws 29 to the oppositely disposedlateral strips 30,

31 of, say, the glass frame 23 and the socket either the upper or theplate 27 is secured by the screws 32 to the oppositely disposed lateralstrips 33, 34 of the upper window sash 11.

Such complementary pivotal mounting plates serve also as wind jambs forthe extents of the lengths of such plates and coact with other partsserving as auxiliary wind jambs for the remainder of the height of theupper sash, as is set forth more fully hereinafter.

A similar arrangement of complementary pivotal mounting plates, andserving also as wind jamb parts, 1s provided for the mounting of thelower glass frame'in the lower sash, and like parts are designated bylike reference numbers with the suflix a. 4

Preferably, the upper glass frame 23 is related to its sash 11 to attainautomatic lQCk'. ing of the glass frame 23 upon the movement of theglass frame '23 to its closed position.

Such locking relationship is had by the provision of the offset or anular faces between lower strips of the glass frame 23 respectivelyrelative to the upper and lower strips of'the upper sash 11; in the mostpreferred form of my invention such locking relation is provided at bothof the locations named. One form of such locking relation is effected byproviding the extension 35 projecting upwardly of the outer ortion ofthe upperstrip 36 of the glass ame 23 which when the glass frame 23 isin its closed position is received'within a correspondingly cut-awayrecess of the upper strip 37 of the upper sash 11. Similarly, the lowerstrip 38 of the upper glass frame 23 is cut away as indicated at 39 toreceive the upward extension 40 of the lower strip 41 o the upper sash11- It will be observed that the oppositely disposed lateral strips 28,29 of the upper glass frame 23 may be. of the full width of the upperand lower strips 36, 38, and in this instance the upper strip 36 isshown as the wider strip.

It will be noted in Fig. 2 that the upper sash 11 has been moveddownwardly some.-

. what from its uppermostposition to clear the extension 35 of the upperstop strip 42 of the window casing 10. When it is desired to close theupper sash, the glass frame 23 is swung in the opposite direction,namely in counter-clockwise rotation, to bring the aforesaidinterlocking strip parts to their mutually locking positions, whereuponthe up er sash 11 is pushed upwardly, the aforesai extension 35 beingreceived between the upper strip 37 of the up er sash 11 and the stostrip42 of the window casing 10, thus loc ing the parts of the uppersash 11 and of the upper glass frame 23 in their closed positions.

The securement of the aforesaid parts of the upper sash to the upperglass frame may be had by the regulation or other approved form ofwindow lock such as is illustrated in.

the drawings and comprising the catch member' 43 and the pivotal cammember 44. However, in carrying out my invention, the catch member 43 issecured by screws or the like to the lower strip 40 of the upper sash 11and the pivotal cam member 44 secured by screws or the like to the upperstrip 45 of the lower sash assembly.

The lower sash and its glass frame are similarly arranged inself-looking position when the upper sash and the lower sash are intheirmutually closed and locked position. The glass of the lower sash isindicated at 46 and ismounted in a frame comprising the upper strip 45,the oppositely disposed lateral strips 47, 48 and the lower strip 49.One form of such mutually locking relation for the assembly of the lowersash parts is had by locating'the upper stri 52 of the lower sash 12intermediate the lbwer strip 40 of the upper sash-11 and the upper strip45 of the lower glassfra'me. In such arrangement the pivotal cam member44 is secured to the upper strip 45 of the lower glass frame.

In the embodiment illustrated in the drawings, the lower glass frame ismounted to swing by turning the. same in clockwise direction as isindicated by the arrows 50. The pivotal mounting, as above indicated, issimilar to that. illustrated in Fig. 4 relative to the pivotal mountingof the upper glass frame-23- In such arrangement, the lower strip 49 ofthe lower glass frame is rabbeted relative to the lower strip 51 of thelower .sash '12, the extension 49 of such rabbeted strip 49 extending onthe outer face of the lower strip 51 of the lower sash 12.

The lower window sash 12 is suspended from sash cords andcounter-weighted similarly to the upper window sash 11, and like 1partsare designated by'like reference numers.

, Thefunction of preventing leakage of air, rain and dust served by thecomplementary pivot'pin and socket plates is afforded by providing thecentral circular portions of each of one-half thickness and theoppositely extending arm portions of each of double thickness, the armportions'being displaced relatively to one another to be disposed sideby side and of one-half of the width of the respective lateral strips ofthe upper and lower glass frames, when the upper and lower glass framesare in vertical-or closed posi' .t1on.-

' The auxiliary wind jamb parts comprise the oppositely disposed jambstrips, see Fig. 5, designated '55, 56, both disposed on a lateralstrip, say, the lateral strip 53 of the lower sash 12 and spaced apartto provide for the clearance required for the complementary pivot andsocket members 25, 27. Similar strips 55, 56 are provided for theopposite lateral strip at of the lower sash 12, and likewise for thecorresponding oppositely disposed lateral strips of the upper glassframe. i

Complementary strips are correspondingly applied to the oppositelydisposed lateral strips 47, 48 of the lower glass frame and aredesignated 57 58. Y

Such or equivalent arrangement of complementary pivotal pin and socketmembers affords a simple form of assembly of each glass frame within itssash and similarly a simple form of removal ofeach glass frame from itssash. This is illustrated in the exploded view' shown in Fig. 5 and asimplified form of assembly is had by mounting the oppositely disposedpivot plates 25, 25, on the oppositely disposed lateral strips 47, 48,of the lower glass frame, then loosely placing the respective socketplates 27 with the respective pivot pins 26, 26 within the respectivesockets 28*, and bodily moving the lower glass frame to position therespective sets ofpivot plates and socket plates within the spacesbetween the respective jamb strips '55, 56, then turna ing the lowerglass frame to a horizontal pothe positionin sition as indicated in Fig.6, thus permitting of the respective socket plates 27 to a ord access tothe screw openings in the same and enable the screws 32 to be turnedby ascrew driver or the like and seated in proper position, as above indicated.

The lower sill is preferably providedwith a stop strip or equivalent forlocking the frame 'ofthe lower glass 46 when the lower glass frame andthe lower sash 12 are in their lowermost positions. As is illustrated inFig. 2, such stop for the sill may be formed by cutting away a portion61 of the upper surface of the outer sill 60 to provide a depression forreceivin the lowermost- .portion 62 of the lower strip '49 ofthe lowerglass-frame. Accordingly, upon closing the upper glass frame 23 andraising the upper sash 11 to its uppermost position, whereby the stopstrip 42 disposed upwardly of the window casing 10 locks the upper glassframe 23 and the, upper sash '11, and the depressions6l 'ofthe sillofthe window casing 10 locks the'lower glass frame and the lower sash12, the closing of the lock 43, 44 locks all the parts of the uppersash,its upper glass frame, the lower sash and the lower glass frame incommon in their respective closed positions.

' Such locking relation of the lower glass frame and the lower sash alsoprecludes the jimmying of the lower sash or the lower glass frame whenthe parts of my improved window are in their respective lockedpositions.

My invention affords many advantages in its use for ventilating tovaried positions of the respective up er and lower glass frames,

upper sash 11 is slightly lowered, whereupon the upper glass frame23 maybe turned to any desired set position. Such ventilation is 'efi'ectedwithout movement of the lower sash and effects such ventilation from thetop of the window, as is most desirable in certain circumstances. 'Whenit isdesired to ventilate through the lower sash, the lower sash isslightly raised to clear the extension of the faces of the depression61, thus permitting the lower glass frame to be turned as desired. Suchventilation through the lower glass may be had independently of the ventilation through the upper glass, or the ventilation may be had bytilting both the upper glass frame and the lower glass frame and each toindependent extents.

The cleaning of the glass of the upper sash and the glass of the lowersash is attained wholly from the interior of the window casing, thusobviating the dangersto life and limbof present day window cleaners andeliminating the liabilities entailed in present day window cleaningmethods.

When it is desired to replace a broken glass, the operation ofreplacement is attained without removal of the glass frame, if desired,and wholly from the interior of the window casing. It will also beapparent that either glass frame may be removed from its sash, ifpreferred, for the purpose of replacing a broken glass, or for otherpurposes.

The construction of my improved window parts made of wood or likematerial, but it will be observed that the parts of the upper sash, itsglass frame, the lower sash and its glass frame may be of steel or othersuitable material and of appropriate thicknesses, somewhatreduced ascompared with the dimensions indicated in the drawings, but of the samerelation and arrangement and .mutually co-acting parts as hereinabove described.

Whereas, I have described my invention by reference to specific formsthereof, it will be understood that many changes and -modifications maybe made without departlower sash, a lower frame pivotally mounted insaid lower frame, and means for locking said upper and lower sashes andsaid upper and lower frames when in closed positions, said locking meanscomprising two parts, one part secured to a lower portion of said uppersash and another part secured to said lower frame.

2. The combination with a window casing having a stop strip, of a sasharranged to be mounted for vertical upward and downward movement in saidwindow casing, a sheet of transparent :material, a frame carrying saidsheet of transparent material and means for pivotall mounting said framein said sash, said rame having an extension dis? posed in lockedposition relative to said stop strip when said frame and said sash arein their closed positions. a a

3. The combination witha window casing having a stop strip, of a sasharranged to be mounted for vertical upward and downward movement in saidwindow casing, a sheet of transparent material, a frame directlycarrying said sheet of transparent material and means for pivotallymounting said frame in said sash, said frame having an extensiondispOIed-in locked position rel ative tosaid stop strip when said frameand said sash are in their closed positions.

4. The combination with a window casing having a stop strip, of an uppersash, a

- lower sash, and frame means for pivotally mounting a-sheet of transarent material in one of said sashes, said ra-me means'comprising aportion disposed in locked relation with said stop stri-pwhen said frameand its sash are their closed positions.

5. The combination with a window casing havin a stop strip, of an uppersash, a lower sas frame means for pivotally mounting a sheet oftransparent material in one of said sashes, said frame means compr sm aportion disposed in locked relation wit said sto strip when said frameand its sash-are in t eir closed positions and means for locking saidupper sash, said lower sash and said frame means in common in theirrespective closed positions.

6. The combination with a window casing having an u wardly dis osed stopstrip an a downwar ly dispose stop strip, of an upper sash, frame meansfor pivotally mounting a sheet of transparent material in said uppersash, said frame means having an upper portion disposed in lockedposition relative to said upwardly disposed stop strip when said uppersash and said frame means are in their uppermost position, a lower sashand a lower frame means for pivotally mounting a sheet of transparentmaterial in said lower sash, said lower frame means being provided witha portion disposed in locked relation with said downwardly disposed stopstrip of said window casing when said lower sash and said lower framemeans are in their lowermost position.

'7. The combination with a window casing having an upwardly disposedstop strip and a downwardly disposed stop strip of an upper sash, framemeans for pivot-ally mounting a sheet of transparent material in saidupper sash, saidiframe means having an upper portion disposed in lockedposition relative to said upwardly disposed stop strip when said uppersash and said frame means are in their uppermost position, a lower sash,a lower frame means for pivotally mounting a sheet of transparentmaterial in said lower sash, said lower frame means being provided witha portion disposed. in locked relation with said downwardly disposedstop strip of said window casing when said lower sash and saidlowerframe means are n their lowermost position and locking means for lockingsaid upper sash, said u

